Thriller' produces full, large trusses of chartreuse-green flowers that emerge amid improved gray-green foliage. This plant spreads more readily than other species.
| Perennial | |
| Alchemilla | |
| Lady's Mantle | |
| Zone 3 | |
| 4-6+ hours | |
| Clay, Dry, Moist, Sandy | |
| Accent perennial or cut flower | |
| Massing in the perennial border | |
| 12-18" | |
| 2-3' | |
| Spring | |
| Green, Yellow | |
| Rapid | |
| Plant-tone | |
| Yes | |
| Yes | |
| Artemisia, Sedum, Pulsatilla, Thymus |